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All plaques contain a clonal population of phage.
True or false
Step by step
Solved in 2 steps
- Place the following in the correct order by which the events would take place. 1. Phagocytosis of a pathogen 2. Antigen is presented by a macrophage 3. MHC II molecules are synthesized 4. Vacuole encases pathogen 5. Lysosomes digest pathogen 1-3-2-4-5 1-5-2-3-4 1-4-5-3-2 1-4-3-2-5Strep throat is commonly caused by group A Streptococcus bacteria. A common symptom of strep throat is the presence of swollen lymph nodes in the neck. This symptom usually peaks about 2–4 days after the onset of the infection, and is due to: Damage to the pharyngeal epithelium by the bacteria Release of bacterial PAMPs leading to inflammatory cytokine production Trapping and activation of antigen-specific lymphocytes in the lymph nodes of the neck Recruitment of neutrophils to the lymph nodes of the neck Recruitment of circulating macrophages to the lymph nodes of the neckThe process where antibody attracts macrophages to invading microbes by making them more appealing or "tasty" is ___ polymerization agglutination inactivation opsonization
- Why monoclonal antibodies method is better than Polyclonal Antibodies method in detecting specific pathogen. Explain reasons.The process where antibody will cause microbes to be connected together so they can no longer cause infection is called: excision inactivation coarctation agglutinationDescrAnaphylactic shock is seen a person who produced a large amount of IgE than the person who produced IgG.
- If a patient was nonadherent to HIV drugs, in this case, what does nonadherent mean?A 18 month-old child is found to have measles antibodies in his blood. Suggest 3 different ways how the child could have acquired such antibodies 2. Describe what usually happens in a phagocytic vesicle after a phagocyte has engulfed a bacterium (diagrams maybe used but not required):Mr. Y’s HIV is being managed on a combination drug regimen that includes two nucleoside reverse transcriptase inhibitors (NRTIs) and one protease inhibitor (PI). His viral load is currently 50,000 copies/ mL; 3 months ago, his viral load was undetectable. His CD4+ T-lymphocyte count is 526 cells/mm3, down from 680 cells/mm3 3 months ago. Although he has been following his HAART regimen, he has experienced multiple complications, including several opportunistic infections. In light of his medical history, Mr. Y is especially concerned about his shortness of breath and hemoptysis. 1.What is the mechanism of action of the NRTI drugs that Mr. Y is taking for his HIV? 2. What is the rationale for the use of combined drug therapy in the treatment of HIV?
- A 3-year-old girl with a fever is sent to the hospital and is found to have a Pseudomonas sp. infection. Her platelet count was 60 x109/L, her haemoglobin value was 74 g/L, her white blood cell count was 1x109/L, and blast cells were seen on a peripheral blood film. Ninety percent of the cells in the bone marrow were blasts, according to a smear. Upon immunophenotyping these blasts using flow cytometry, positive phenotypes for CD10, CD19, (partial)TdT, and CD34 were observed.Describe and give one example: artificial active acquired immunity artificial passive acquired immunity natural active acquired immunity natural passive acquired immunityBeta-hemolytic Streptococcus pyogenes causes Multiple Choice partial lysis of red blood cells complete lysis of red blood cells no lysis of red blood cells double-zone lysis of red blood cells